What is the MOT pass rate in London (South West)?

83.7% of MOT tests carried out in London (South West) pass, based on 219,744 tests. Adjusted for the age of cars tested there, the figure is 83.3%.

Does this show cars registered in London (South West), or tested there?

Tested there. DVSA's data records the postcode of the testing station, not the vehicle owner's home address, so this reflects cars tested in London (South West) — which may include vehicles from further afield — not necessarily cars kept locally.

What's the most common MOT failure reason in London (South West)?

Lamps, reflectors and electrical equipment is the most common failure category among tests carried out in London (South West), present in 54.9% of failed tests there.

London (South West) MOT pass rate

Cars tested in London (South West), age-adjusted, has a pass rate of 83.3%, a little higher than the national average (79.2%).

83.7%

Raw pass rate

83.3%

Age-adjusted pass rate

+4.1 pts

vs national average

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“Cars tested in London (South West), age-adjusted, has a pass rate of 83.3%, a little higher than the national average (79.2%).”

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83.7% of 219,744 MOT tests carried out in London (South West) pass — the age-adjusted figure is 83.3%.

Pass rate by vehicle age in London (South West)

MOT pass rate by vehicle age band, cars tested in London (South West)
Vehicle age	Pass rate	Tests
0–3 years	92.2%	11,295
3–6 years	90.6%	51,231
6–10 years	86.1%	67,632
10–15 years	79.4%	46,256
15+ years	74.1%	43,330

Most common MOT failure reasons in London (South West)

Top MOT failure categories, cars tested in London (South West)
Category	Share of failed tests
Lamps, reflectors and electrical equipment	54.9%
Tyres	26.2%
Brakes	21.3%
Visibility	20.2%
Suspension	19.8%

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Methodology and data source

Source: DVSA “Anonymised MOT tests and results”, data.gov.uk, under the Open Government Licence v3.0.
Coverage: Full year 2024, test class 4 (cars), normal (initial) tests only.
This covers cars tested in London (South West) (DVSA's postcode_area field is the testing station's location, not the vehicle owner's home address).
The age-adjusted figure is standardised to the national vehicle-age mix, so it isn't just reflecting whether this area's tested fleet happens to run older or newer than average.

Full methodology, filters, and sample thresholds →

Own a car in London (South West)?

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Frequently asked questions

What is the MOT pass rate in London (South West)?: 83.7% of MOT tests carried out in London (South West) pass, based on 219,744 tests. Adjusted for the age of cars tested there, the figure is 83.3%.
Does this show cars registered in London (South West), or tested there?: Tested there. DVSA's data records the postcode of the testing station, not the vehicle owner's home address, so this reflects cars tested in London (South West) — which may include vehicles from further afield — not necessarily cars kept locally.
What's the most common MOT failure reason in London (South West)?: Lamps, reflectors and electrical equipment is the most common failure category among tests carried out in London (South West), present in 54.9% of failed tests there.